In a world in which this last week has seen the terrorist outrages in Spain, the departure of Steve Bannon as Trump’s strategy adviser, the flip-flopping of Trump on whether American neo-Nazis are to be condemned, the temporary cessation of Kim Jong-un’s plan to fire ICBMs at the seas surrounding Guam, the almost-instant collapse in popular support for Emmanuel Macron, and the exposure of Britain's Tory government as naive and clueless on the post-Brexit implications for the Irish border, it might seem a little petty or introverted to lift the carpet and closely examine the possibility that Sinn Féin is edging closer to participation in a coalition government here after the next election.